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Çѱ¹µµ·ÎÇÐȸ / v.10, no.4, 2008³â, pp.9-18
ÁÙ´« ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ ÇÁ·ÎÆÄÀÏ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÑ ½½·¡ºêÀÇ ÄøµÇü»ó ÃßÃâ±â¹ý °³¹ß
( Development of Extraction Method of Slab Curling Shape of jointed Concrete Pavement Using Profile Data )
Àü¹üÁØ;À̽¿ì;¹®¼ºÈ£; °­¸ª´ëÇб³ Åä¸ñ°øÇаú;°­¸ª´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹µµ·Î°ø»ç µµ·Î±³Å뿬±¸¿ø;
 
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ÁÙ´« ÄÜÅ©¸®Æ®Æ÷Àå(JCP-Jointed Concrete Pavement)ÀÇ °æ¿ì Æ÷Àå´Ü¸é ¿Â ½ÀµµÂ÷¿¡ ÀÇÇØ ½½·¡ºê ³»ÀÇ ÄøµÀÌ ¹ß»ýÇÏ°Ô µÈ´Ù. Äøµ¿¡ ÀÇÇØ¼­ ¹ß»ýÇÏ´Â ½½·¡ºêÀÇ ÈÚ Çü»ó ¹× Å©±â´Â Æ÷Àå³» ÀÀ·Â ¹× Æòź¼º¿¡ ¿µÇâÀ» ¹ÌÄ¡±â ¶§¹®¿¡ Æ÷ÀåÀÇ ±¸Á¶Àû, ±â´ÉÀû ¼º´É¿¡ Áß¿äÇÑ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Ù. ½½·¡ºêÀÇ ÈÚ Çü»óÀ» Á÷Á¢ ÃøÁ¤ÇÏ´Â °ÍÀº ½Ã°øÃʱ⿡ Æ÷Àå³»¿¡ ´Ù·®ÀÇ °èÃø±â¸¦ ¸Å¼³ÇÏ¿©¾ß Çϸç, ½Ã°øÃʱâºÎÅÍ °Åµ¿ÀÇ Á¤±³ÇÑ ÃøÁ¤ÀÌ ÇÊ¿äÇÏ°í °í°¡ÀÇ ½ÇÇèºñ¿ë ¹× ±â¼úÀû ÀÎ ¾î·Á¿òÀ» °®°í ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ÇöÀå¿¡¼­ ¼Õ½±°Ô ȹµæÇÒ ¼ö ÀÖ´Â ÇÁ·ÎÆÄÀÏ µ¥ÀÌÅÍ(Profile Data)¿¡ ÆÄ¿ö ½ºÆåÆ®·³ ºÐ¼®(Power Spectrum Density Analysis) ¹× ¿ª Ǫ¸®¿¡ º¯È¯(Inverse Fast Fourier Transform) ±â¹ý µîÀ» Àû¿ëÇÏ¿© ÀÓÀÇÀÇ ½Ã°£¿¡¼­ ÁÙ´« ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ ½½·¡ºê ÈÚ Çü»óÀ» ÃøÁ¤ÇÏ´Â ¹æ¹ýÀ» °³¹ßÇÏ¿´´Ù. °³¹ßÇÑ ±â¹ýÀÇ ½ÇÈ¿¼ºÀ» °ËÁõÇϱâ À§ÇÏ¿© ±¹³» Áߺγ»·ú¿¡ À§Ä¡ÇÑ ½ÃÇèµµ·Î ÁÙ´« ÄÜÅ©¸®Æ® Æ÷Àå¿¡¼­ ½Ã°£´ëº° ÇÁ·ÎÆÄÀÏÀ» ÃøÁ¤Çϰí ÀÌ µ¥ÀÌÅͷκÎÅÍ ½½·¡ºê ÈÚ Çü»óÀ» µµÃâÇÏ¿© ±× °á°ú¸¦ °ËÅäÇÏ¿´´Ù. ¶ÇÇÑ µ¿ ½Ã°£´ëÀÇ ¿¬¼Óö±Ù ÄÜÅ©¸®Æ®Æ÷Àå(CRCP- Continuous Reinforced concrete Pavement) ±¸°£¿¡¼­ÀÇ ÇÁ·ÎÆÄÀÏ µ¥ÀÌÅ͸¦ ºÐ¼®Çϰí À̸¦ ÁÙ´« ÄÜÅ©¸®Æ®Æ÷Àå¿¡¼­ÀÇ °á°ú¿Í ºñ±³ÇÏ¿© °³¹ßÇÑ ½½·¡ºê ÈÚ Çü»ó ÃßÃâ±â¹ýÀÇ Å¸´ç¼ºÀ» °ËÁõÇÏ¿´´Ù.
Curling is caused by the difference in the temperature and humidity by the depth of the slab in Jointed Plain Concrete Pavement. Slab curvature shape and size change due to curling exert a profound influence on the internal stress and roughness of the pavement, affecting structural and functional performance of the pavement. Direct measurement of the slab curvature entails many problems. Many measuring instruments have to be installed at the early-stage of the pavement construction, and the behavior of the slab curvature needs to be measured accurately from the early-stage. Moreover, the cost and technical difficulty are very formidable to measure the slab curvature. This study develops a measurement method for slab curvature in jointed concrete pavement at any given time by applying Power Spectrum Density Analysis and Inverse Fast Fourier Transformation to the profile data, that can be easily obtained at the construction field site. The effectiveness of this developed method is verified by measuring the profile data of the test road of jointed concrete pavement at an inland central expressway by the hour and by examining the result of extracting the slab curvature shape from this profile data. Additionally, the profile data of CRCP(Continuously Reinforced Concrete Pavement) sections on the same expressway were obtained and analyzed at the same time. The validity of the method developed for the slab curvature shape extraction is verified by comparing the result from the analysis of the profile data of CRCP sections with that from the analysis of the prof1Ie data of jointed concrete pavement sections.
 
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Äøµ;ÇÁ·ÎÆÄÀÏ µ¥ÀÌÅÍ;ÆÄ¿ö ½ºÆåÆ®·³ ºÐ¼®;¿ª Ǫ¸®¿¡ º¯È¯;ÁÙ´« ÄÜÅ©¸®Æ® Æ÷Àå;profile data;PSD(power spectrum density analysis);IFFT(inverse fourier transform);curling;JPCP(joint plained concrete pavement);
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.4, 2008³â, pp.9-18
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200806135607907)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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